spring boot 日志（logback）报错解决问题

绝地灬酷狼 2022-05-15 11:43 244阅读 0赞

记录一次报错解决方法：

No converter found capable of converting from type \[java.lang.String\] to type \[java.util.Map<java.lang.String, java.lang.String>\]

org.springframework.boot.context.properties.bind.BindException: Failed to bind properties under 'logging.level' to java.util.Map<java.lang.String, java.lang.String>
        at org.springframework.boot.context.properties.bind.Binder.handleBindError(Binder.java:250)
        at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:226)
        at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:210)
        at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:166)
        at org.springframework.boot.context.logging.LoggingApplicationListener.setLogLevels(LoggingApplicationListener.java:307)
        at org.springframework.boot.context.logging.LoggingApplicationListener.initializeFinalLoggingLevels(LoggingApplicationListener.java:290)
        at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:238)
        at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:200)
        at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:173)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
        at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74)
        at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
        at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:361)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1258)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246)
    Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.String] to type [java.util.Map<java.lang.String, java.lang.String>]
        at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:321)
        at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:194)
        at org.springframework.boot.context.properties.bind.BindConverter$CompositeConversionService.convert(BindConverter.java:162)
        at org.springframework.boot.context.properties.bind.BindConverter.convert(BindConverter.java:96)
        at org.springframework.boot.context.properties.bind.BindConverter.convert(BindConverter.java:88)
        at org.springframework.boot.context.properties.bind.MapBinder.bindAggregate(MapBinder.java:67)
        at org.springframework.boot.context.properties.bind.AggregateBinder.bind(AggregateBinder.java:58)
        at org.springframework.boot.context.properties.bind.Binder.lambda$bindAggregate$2(Binder.java:305)
        at org.springframework.boot.context.properties.bind.Binder$Context.withIncreasedDepth(Binder.java:441)
        at org.springframework.boot.context.properties.bind.Binder$Context.access$100(Binder.java:381)
        at org.springframework.boot.context.properties.bind.Binder.bindAggregate(Binder.java:304)
        at org.springframework.boot.context.properties.bind.Binder.bindObject(Binder.java:262)
        at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:221)
        ... 18 common frames omitted

application.yml中的**原**配置如下：(spring boot版本2.0.4)

logging:
      path: ./logs/
      level: debug

报错后，spring boot切换回1.5.9发现没问题，因此去官网查找

官网：[https://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/\#boot-features-custom-log-levels][https_docs.spring.io_spring-boot_docs_current-SNAPSHOT_reference_htmlsingle_boot-features-custom-log-levels]

看到这部分

<table> 
 <tbody> 
  <tr> 
   <td> <h2>26.4&nbsp;Log Levels</h2> <p>All the supported logging systems can have the logger levels set in the Spring <code>Environment</code> (for example, in <code>application.properties</code>) by using <code>logging.level.&lt;logger-name&gt;=&lt;level&gt;</code> where <code>level</code> is one of TRACE, DEBUG, INFO, WARN, ERROR, FATAL, or OFF. The <code>root</code> logger can be configured by using <code>logging.level.root</code>.</p> <p>The following example shows potential logging settings in <code>application.properties</code>:</p> <pre><code>logging.level.root=WARN
logging.level.org.springframework.web=DEBUG
logging.level.org.hibernate=ERROR</code></pre> </td> 
  </tr> 
 </tbody> 
</table>

看完这部分，将yml改为如下：

logging:
      path: ./logs/
      level:
        root: debug

再次重启，问题解决

[https_docs.spring.io_spring-boot_docs_current-SNAPSHOT_reference_htmlsingle_boot-features-custom-log-levels]: https://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot-features-custom-log-levels